Crush it to gravel size and it ll work out to be a wonderful substrate with high CEC and will grow out majority of plants. Its porous nature helps plant roots to stick on, especially small kind like HC,gloso.

SCORPIO wrote:Some guys already using these rocks without any problem.

I just picked up 4 big boulders,where tons and tons was lying.Since I will pick some fishes,driftwood etc,could not take more.They just look nice in the tank.Boesemani rainbow 1.5'-Rs 300 pairDrawf neon rainbow 1'-Rs 100 pairclown loach small 2'-Rs-400 Pair.Is the rate ok or in this rate i will get in delhiaswell!.

SomenAny dead fish can flow down the river but it takes a live one to swim back up stream.